New Castle, NH Weather


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The most pleasant months of the year for New Castle are June, August and July. In New Castle, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for New Castle with an average high temperature of 81.9°, which ranks it as warmer than most places in New Hampshire. January is the snowiest month in New Castle with 16.7 inches of snow, and 6 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - New Castle, NH

9 AM PST

Mostly Sunny

52°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonMostly Sunny52° / 40°E 5 to 10 mph
SundayPartly Sunny then Slight Chance Rain Showers54° / 43°E 5 mph
MondayMostly Sunny60° / 48°SW 5 to 10 mph
TuesdayChance Rain Showers64° / 53°S 10 mph
WednesdayRain Showers Likely60° / 49°SE 5 to 10 mph
ThursdayMostly Sunny64° / 48°N 10 mph
FridayPartly Sunny then Slight Chance Rain Showers63° / 50°NE 5 to 10 mph

Weather Highlights

Summer High: the July high is around 82 degrees
Winter Low: the January low is 14
Rain: averages 50 inches of rain a year
Snow: averages 53 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the New Castle area is 9.2 (10=best), which means it is more comfortable than most places in New Hampshire.

9.2 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January33° 14°
February37° 17°
March45° 24°
April57° 34°
May68° 44°
June77° 53°
July82° 58°
August81° 57°
September73° 49°
October61° 38°
November50° 31°
December39° 21°
Hot, Freezing, Rainy, Snowy Days: New Castle
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January030106
February02684
March024104
April013111
May02110
June20110
July30100
August3090
September1190
October09100
November018101
December028104

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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